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MultiMedia Soft products => Audio playback and audio management components => Topic started by: XMan2015 on March 25, 2025, 01:44:01 PM

Title: Windows 11 24H2 issues with reverb_i3dl2
Post by: XMan2015 on March 25, 2025, 01:44:01 PM
Hello,
I noticed since the Windows 11 24H2 update the reverb_i3dl2 effect does not work anymore. I tried on previous builds of Windows 11 (23H2, 22H2, 22H1) and Windows 10. Works as expected.
I do think it is a Windows 11 24H2 issue, not AudioDJ issue, but wanted to confirm.

To reproduce this, use the sample EXE Special Effects, load a sound, activate the i3DL2 Reverb effect. Win11 24H2 nothing happens, Windows 23H2 is OK.

Thank you
Title: Re: Windows 11 24H2 issues with reverb_i3dl2
Post by: Administrator on March 26, 2025, 05:28:34 PM
Hello and thanks for your feedback.

Indeed it seems that something was broken inside DirectX because it currently returns an error stating that this special effect is not available: we will investigate the issue further and will let you know our findings.

Kind regards

Severino Delaurenti
MultiMedia Soft
Title: Re: Windows 11 24H2 issues with reverb_i3dl2
Post by: XMan2015 on March 26, 2025, 07:14:21 PM
I was just going to write about this.  ;D
Yes that is exactly the problem, the  I3DL2REVERB effect is failing with a REGDB_E_CLASSNOTREG (class not registered) error.
So it is a bug introduced in the Windows 11 24H2 build 26100.3476.

A previous Windows 11 24H2 build 26100.2605 does not have that issue. Just like any other 23H2, 22H2 builds.

I already open a ticket at Microsoft regarding this. I added this information today.
Thank you
Title: Re: Windows 11 24H2 issues with reverb_i3dl2
Post by: Administrator on March 27, 2025, 04:38:39 PM
Hello,

Windows updates are sometime buggy themselves and this seems to be one of these cases; probably something was deleted inside the registry because, being DirectX stuffs implemented through COM classes, it's likely that the CLSID identifying the class of the effect was removed in error: let's hope that this will be fixed soon by Microsoft.

Kind regards

Severino Delaurenti
MultiMedia Soft